What is a Class A ceiling tile?

A good rating (Class A or Class 1) in this test means the material is almost entirely non-flammable (doesn’t burn easily). A bad rating means the material is highly flammable, and should not be used as an interior finish or building component.

What is the fire rating of ceiling tiles?

All interior finishes with ceiling tiles must be fire code Class A (1) for both smoke and flame. While most PVC ceiling tiles are rated A(1) some are only class C(3) even though they claim the A(1) rating. Always request a spec sheet with ASTM E84 report for any ceiling tile being considered.

Do Armstrong ceiling tiles contain formaldehyde?

Many Armstrong acoustical mineral fiber ceilings are formulated with no-added formaldehyde and they outperform CHPS (the collaborative for high performance schools) Section 01350 requirements on emissions.

Are Armstrong ceiling tiles flammable?

Armstrong Ceilings and Fire Performance The good news is that almost all Armstrong Ceiling panels, tiles, and planks achieve a Class A rating for flame/smoke spread, and are therefore suitable for use in most residential and commercial spaces. Find the fire classification on our Product Specifications page.

How do you do a 30 minute fire resistant ceiling?

If the ceiling is plasterboarded, then 12.5mm thick boards are required to give 30 minutes’ fire resistance. You may have to provide an additional skim coat or additional plasterboard to the ceiling.

Are ceiling tiles toxic?

Don’t use ceiling tiles with dangerous air-polluting chemicals. Many fiberglass and mineral fiber ceiling panels use formaldehyde, a carcinogen and respiratory irritant, as a binding agent. Other ceiling tiles may contain hormone-disrupting PVC, chemical flame retardants or antimicrobial treatments.

Do ceiling tiles have asbestos in them?

Size, appearance and installation date of floor and ceiling tiles are all indicators that asbestos may be present. Square floor tiles installed between 1920 and 1980 are most likely to contain asbestos. Ceiling tiles with asbestos were often square or rectangular.

Are Suspended ceiling tiles fire rated?

A: In relation to suspended ceilings, fire resistance can only be achieved by a combined tile and grid system; so there is no such thing as a fire resistant tile or a fire resistant grid.